Subject: Re: seti groups
From: "Neil" <usenet1@blueyonder.co.uk>
Date: 14/05/2004, 19:46
Newsgroups: alt.sci.seti

Im not trying for stats, im trtying to setup a group, its taken 3 days just
to get me 2nd password but now I cant join the grroup cause of the 500's

-- -- Kind Regards Neil B - Redditch - www.nells.org.uk Live Life in the Fast Lane - www.blueyonder.co.uk My new group - http://tv.groups.yahoo.com/group/lucy_pargeter "Mike Bader" <mdbader@flash.net> wrote in message news:er8pc.18602$o77.5537@newssvr31.news.prodigy.com...
May 5, 2004

Re: Chronic "500" errors when using our web site.

The SETI@home web site gets over two million hits a day. A large chunk of
these hits are statistics queries which load down the server. At peak
times
(usually in the middle of the U.S. work day) the server can't gracefully
handle the load and requests fail with an ugly "500" internal server error
(which shows up in different ways depending on your browser).

To help alleviate this problem, we set up a second web server just to
handle
stats requests (called setiathome2). However, a lot of people (and pieces
of
software) have setiathome.ssl.berkeley.edu bookmarked as the site to look
up
statistics. These links still work, but still occasionally get overloaded.

So, if you are getting such errors, check your URL - make sure that the
beginning is: http://setiathome2.ssl.berkeley.edu, and not
http://setiathome.ssl.berkeley.edu.

Q: Why do you use two separate names (setiathome and setiathome2) as
opposed
to using some form of automatic load balancing?

A: Well, because in theory we want these web servers to do two entirely
different things. The first (setiathome) would host the home page (and all
the other static pages). The second (setiathome2) would host all the
dynamically generated pages, handle forms, etc. When everything was on one
server, heavy loads due to excess queries prevented other people from
loading the home page and downloading the software, and this was quite
embarrassing. This scheme would keep this activity localized to the second
server, so the informational pages on the first would always load (and
load
quickly).

In practice, however, this proved difficult. As stated above, many people
bookmarked (and pieces of software hardwired) the first server as the
stats
server, and we couldn't just break all those links. So to be nice we left
those channels open on the first server, but enough activity (via links on
the web page) was shoveled over to the second server to vastly reduce the
load.

We are working on the next generation website (to be launched in tandem
with
the next generation of software) where most everything is dynamically
generated. At this point we'll (hopefully) throw more web servers into the
fold and use some automatic load balancing technique which won't require
us
to advertise different server names for different kinds of web activity.

-- 
Mike Bader
Join our International team
http://www.setiathome.us
http://www.boinc.us

No of SETI units returned: 27614
Processing time: 49 years, 43 days, 0 hours.
(Total hours: 430272)


"Neil" <usenet1@blueyonder.co.uk> wrote in message
news:LV6pc.475$J_7.441@front-1.news.blueyonder.co.uk...
does any1 from seti montor this group as there are no contact details on
the
site?




-- 
--
Kind Regards
Neil B     -    Redditch        - www.nells.org.uk
Live Life in the Fast Lane - www.blueyonder.co.uk
My new group - http://tv.groups.yahoo.com/group/lucy_pargeter
"Alisha's Addict" <alishas.dontspam.addict@blueyonder.co.getrid.uk>
wrote
in
message news:2el7a0hcrmhaqhtb5hpf8ij91isk1tr78h@4ax.com...
On Thu, 13 May 2004 21:05:34 +0100, "Neil" <ukneil@o2.co.uk> wrote:

I trying to make a group, for my 2 pc's with separate email accounts
and
a
friends pc, but I keep getting error 500 on www.

I been trying for 4 days now and its doing me head in, seti group
want
help
with decoding but their website faults are badddd.

I keep getting that when I try to do anything with my Seti group
(apart from viewing) ... Grr :-( No fix for you but I thought I'd post
so you knew you weren't on your own.

Pete Lilleyman
alishas.dontspam.addict@blueyonder.co.getrid.uk
(please get rid of ".getrid" to reply direct)
(don't get rid of the dontspam though ;-)